US PATENT SUBCLASS 141 / 40
.~.~ Control by level in filled receiver

Current as of: June, 1999
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141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

37  DF  DIVERSE FLUID CONTAINING PRESSURE FILLING SYSTEMS INVOLVING RECEIVER GAS CONTENT MODIFICATION {11}
39  DF  .~ Filling means controlled by gas condition in receiver {1}
40.~.~ Control by level in filled receiver {1}
41  DF  .~.~.~> Air pump external to flow line {1}

DEFINITION

Classification: 141/40

(under subclass 39) Apparatus in which the establishment of a desired gas condition in the receiver is controlled by the level of contents material other than the gas in the receiver.

(1) Note. The apparatus here included does not necessarily predicate an air tight connection with the receiver, but rather requires a change in the gas condition in the receiver by some outside interference.

SEE OR SEARCH THIS CLASS, SUBCLASS:

192+, for automatic control of flow cut-off or diversion means responsive to the level of the contents material in a receiver.